ACTIVELY EXPLOITED

CVE-2019-1130: Microsoft Windows AppX Deployment Service Privilege Escalation Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV23 May 2022
CISA federal deadline13 Jun 2022
Ransomware useKnown
Weakness (CWE)CWE-59

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A privilege escalation vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.